Anything not specifically related to NBTV, but at least of some technical nature that might be of interest to NBTV members. Items for sale and links to retailers do not belong here.
I've been following this guy for a year or so, with his amazing Antikythera mechanism build. If you ever wanted to see perfection in a mechanical build, this is it. Highly, highly recommended to watch...
The fact that complex geared mechanisms were designed and built way back then and then we lost the technology makes you wonder just how many other things were invented way earlier and then forgotten.